First observation of the decay τ- → φ{symbol} K- ντ

K. Inami, K. Abe, K. Abe, I. Adachi, H. Aihara, D. Anipko, K. Arinstein, V. Aulchenko, T. Aushev, S. Bahinipati, A. M. Bakich, E. Barberio, M. Barbero, I. Bedny, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, T. E. Browder, A. ChenK. F. Chen, W. T. Chen, R. Chistov, Y. Choi, Y. K. Choi, J. Dalseno, M. Danilov, A. Drutskoy, S. Eidelman, D. Epifanov, S. Fratina, N. Gabyshev, T. Gershon, G. Gokhroo, H. Ha, J. Haba, K. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, S. Hou, W. S. Hou, Y. B. Hsiung, T. Iijima, A. Ishikawa, R. Itoh, Y. Iwasaki, J. H. Kang, P. Kapusta, S. U. Kataoka, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, Y. J. Kim, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, R. Kumar, A. Kuzmin, Y. J. Kwon, G. Leder, T. Lesiak, S. W. Lin, D. Liventsev, G. Majumder, F. Mandl, T. Matsumoto, A. Matyja, S. McOnie, W. Mitaroff, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, J. Mueller, Y. Nagasaka, I. Nakamura, E. Nakano, M. Nakao, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, Y. Onuki, H. Ozaki, H. Palka, C. W. Park, H. Park, L. S. Peak, L. E. Piilonen, A. Poluektov, Y. Sakai, T. Schietinger, O. Schneider, A. J. Schwartz, R. Seidl, K. Senyo, M. E. Sevior, H. Shibuya, B. Shwartz, V. Sidorov, J. B. Singh, A. Somov, N. Soni, S. Stanič, M. Starič, H. Stoeck, S. Y. Suzuki, O. Tajima, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, T. Tsukamoto, S. Uehara, K. Ueno, T. Uglov, S. Uno, P. Urquijo, Y. Usov, G. Varner, S. Villa, E. Won, C. H. Wu, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, L. M. Zhang, V. Zhilich, A. Zupanc

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Abstract

We present the first observation of τ lepton decays to hadronic final states with a φ{symbol}-meson. This analysis is based on 401 fb-1 of data accumulated at the Belle experiment. The branching fraction obtained is B (τ- → φ{symbol} K- ντ) = (4.05 ± 0.25 ± 0.26) × 10-5.

Original languageEnglish
Pages (from-to)5-10
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume643
Issue number1
DOIs
Publication statusPublished - 2006 Nov 30

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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    Inami, K., Abe, K., Abe, K., Adachi, I., Aihara, H., Anipko, D., Arinstein, K., Aulchenko, V., Aushev, T., Bahinipati, S., Bakich, A. M., Barberio, E., Barbero, M., Bedny, I., Bizjak, I., Bondar, A., Bozek, A., Bračko, M., Browder, T. E., ... Zupanc, A. (2006). First observation of the decay τ- → φ{symbol} K- ντ. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 643(1), 5-10. https://doi.org/10.1016/j.physletb.2006.10.027